CN102633799B - Method for synthesizing sapropterin dihydrochloride from racemate intermediate separation route - Google Patents

Method for synthesizing sapropterin dihydrochloride from racemate intermediate separation route Download PDF

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CN102633799B
CN102633799B CN201210102879.1A CN201210102879A CN102633799B CN 102633799 B CN102633799 B CN 102633799B CN 201210102879 A CN201210102879 A CN 201210102879A CN 102633799 B CN102633799 B CN 102633799B
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CN102633799A (en
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洪浩
詹姆斯·盖吉
陈朝勇
卢江平
周炎
刘双勇
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凯莱英医药集团(天津)股份有限公司
凯莱英生命科学技术(天津)有限公司
天津凯莱英制药有限公司
凯莱英医药化学(阜新)技术有限公司
吉林凯莱英医药化学有限公司
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    • C07D475/00Heterocyclic compounds containing pteridine ring systems
    • C07D475/02Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4
    • C07D475/04Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4 with a nitrogen atom directly attached in position 2
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    • C07C225/02Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones having amino groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C225/04Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones having amino groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being saturated
    • C07C225/06Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones having amino groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being saturated and acyclic
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    • C07D239/24Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
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    • C07D317/10Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
    • C07D317/14Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with substituted hydrocarbon radicals attached to ring carbon atoms
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    • C07D317/08Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/10Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
    • C07D317/14Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with substituted hydrocarbon radicals attached to ring carbon atoms
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    • C07D317/08Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/10Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
    • C07D317/32Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms

Abstract

The invention discloses a method for synthesizing sapropterin dihydrochloride from a racemate intermediate separation route. According to the invention, the synthetic route of sapropterin dihydrochloride is shortened, and a chiral separation reagent is utilized to separate the racemic intermediate or the intermediate with a low enantiomer heterogeneous value so as to obtain the intermediate with a high enantiomer heterogeneous value. According to the invention, the raw material is low in price and easy to obtain, the cost is greatly reduced, and an effective concept is provided for large-scale industrial production of sapropterin dihydrochloride.

Description

A kind of method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route

(1) technical field:

The present invention relates to a kind of synthetic method of medicine for the treatment of pku, particularly a kind of method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route.

(2) background technology:

Two sapropterin hydrochloride, chemistry (6R)-2-amino by name-6-[(1R, 2S)-1,2-dihydroxypropyl]-5,6,7,8-tetrahydrochysene-4 (1H)-pterin dihydrochloride, its molecular formula C 9h 15n 5o 3.2HCl, CAS registration number 69056-38-28.Two sapropterin hydrochloride are tetrahydrobiopterin (BH 4) sintetics of dihydrochloride.BH 4be the cofactor of Phenylalanine hydroxylase (PAH), there is hydroxylating and obtain tyrosine in phenylalanine (Phe) under the effect of PAH, non-activity even a little less than PAH activity in PKU patient body, BH 4can activate PAH, promote the normal oxidation metabolism of Phe in its body, and reduce the Phe level in some patient body.U.S. FDA, in two sapropterin hydrochloride sheet listings of approval on December 16th, 2007 BioMarin drugmaker, is used for the treatment of pku.Due to the effective active of two sapropterin hydrochloride, therefore select the route that an applicable suitability for industrialized production and product purity are high just to seem very necessary.

The method of the tetrahydrobiopterin synthesis pterin HB2 of bibliographical information mainly contains at present:

1,, with 4-hydroxyl-2,5,6-Triaminopyrimidine and 5-deoxidation-L-arabinose are that document E.L.Patterson et al., J.Am.Chem.Soc.78,5868 (1956) are asked for an interview in raw material preparation

2, the preparation take TAP and 5-deoxidation-L-arabinose phenylhydrazone as raw material.Ask for an interview document Matsuura et al., Bull.Chem.Soc.Jpn., 48,3767 (1975);

3, with TAP and 4-acetyl-2 of hydroxyl protection, 3-epoxy valeral is raw material reaction, through oxidation and the preparation of dehydroxylation blocking group of iodine.Ask for an interview document Matsuura et al., Chemistry of Organic Synthesis, Ml/g.46.No.6, P570 (1988).

The method of what these were traditional prepare tetrahydrobiopterin mainly contains following shortcoming: expensive raw material price, is used and do not allow the carbon atom group of facile pectinose as asymmetric synthesis; Polystep reaction productive rate is low, and product purity is not high, and 5-deoxidation-L-arabinose is easily degraded in reaction soln, and the stereoselectivity of said synthesis route product is not high.In sum, traditional synthetic method is not suitable for large-scale industrial production.Therefore, urgently find an applicable suitability for industrialized production, and product purity is high, yield is high, the synthetic route that stereoselectivity is high.

(3) summary of the invention

The object of the present invention is to provide a kind of method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route, the synthetic route of two sapropterin hydrochloride has been shortened in this invention, utilize chiral selectors to split the intermediate of racemization intermediate or low enantiomorph isomery value, obtain the intermediate of high antimer isomery value, raw material is cheap and easy to get, greatly reduce cost, for the large-scale industrial production of two sapropterin hydrochloride provides an effective thinking.

Technical scheme of the present invention: a kind of method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route, is characterized in that concrete steps are as follows:

(1), under the existence of polar solvent, add compound 1 wherein X=NH or O, R=C1~C6 alkane or benzyl, system is warmed up to 35~50 ℃, add oxygenant, system, in 35~50 ℃ of insulation reaction 2~5 hours, adds 10%~20% strong alkali aqueous solution in system, add rear insulation reaction 3~4 hours, extraction, concentrates and obtains compound 2, and structural formula is in the time that X is NH, compound 1 is β-crotonic acid alkyl or benzyl acid amides, and compound 2 is 2,3 epoxies-butyric acid alkylamide; In the time that X is oxygen, compound 1 is β-crotonic acid alkyl ester or crotons acid benzyl ester, and compound 2 is 2,3 epoxies-butyric acid alkyl ester or 2,3 epoxies-benzyl butyrate;

Wherein, with the amount ratio of polar solvent be 1g/5~20ml, with the mol ratio of oxygenant be 1: 1~3, with the mol ratio of highly basic be 1: 1~3;

(2) under the existence of acetone, add Lewis acid, 10~30 ℃ of temperature controls add compound 2, insulation reaction 5~10 hours, and to the inorganic alkali solution that adds 5%~10% in system, system is through separatory, and extraction concentratedly obtains compound 3, and structural formula is in the time that X is NH, compound 3 is 2,3-the third ketal-alkyl butyramide or 2,3-the third ketal-benzyl butyramide, and in the time that X is oxygen, compound 3 is 2,3-the third ketal-butyric acid alkyl ester or 2,3-the third ketal-benzyl butyrate;

Wherein, compound 2 is 1: 3~15 with the mol ratio of acetone, and compound 2 is 1: 0.1~1 with lewis acidic mol ratio, and compound 2 is 1: 0.5~3 with the mol ratio of mineral alkali;

(3) under polar solvent exists, add compound 3, be warming up to 25~40 ℃, add pure water and basic solution, insulation reaction 3~8 hours, centrifugal, filter cake is used and is reacted the polar solvent dissolving of using polar solvent identical, adds resolution reagent, in 15~30 ℃ of insulations 3~5 hours, centrifugal, dry, obtain compound 4, i.e. (4S, 5S)-2,3-the third ketal-butyric acid alkylbenzene ethylamine salt, structural formula is n=0,1;

Wherein, compound 3 is 1g/3~10ml with the amount ratio of polar solvent, compound 3 is 1: 0.5~3 with the mol ratio of pure water, compound 3 is 1: 0.5~2 with the mol ratio of the alkaline matter of basic solution, compound 3 is 1g/2~10ml with the amount ratio of the polar solvent of dissolving filter cake, and compound 3 is 1: 1~5 with resolution reagent mol ratio;

(4) under ether solvent exists, add compound 4, then be 1~3 to adding in system 5~10% inorganic acid aqueous solutions to regulate pH, temperature control-10~10 ℃, are incubated 1 hour, and separatory obtains organic phase, in organic phase, add DIPEA, the concentrated compound 5 that obtains of system, i.e. (4S, 5S)-2,2,5-trimethylammonium 1,3-dioxolane-4-formic acid, structural formula is

Wherein, compound 4 is 1g/3~10ml with the amount ratio of ether solvent, and compound 4 is 1: 0.8~3 with the mol ratio of DIPEA;

(5) under ether solvent exists, add compound 5, DIPEA; cool to-30~0 ℃, add chloro-formic ester, insulation reaction 1~2 hour, passes into diazomethane gas 1~2 hour; add ethanol solution of hydrogen chloride, react 1~2 hour, add alkaline reagents to regulate pH value to 7~9; extraction, separatory, the concentrated compound 6 that obtains; i.e. (4S, 5S)-2,2; 5-trimethylammonium-5-chloracetyl-1,3-dioxolane, structural formula is

Wherein, compound 5 is 1g/5~15ml with the amount ratio of ether solvent; Compound 5 is 1: 1~5 with the mol ratio of DIPEA; Compound 5 is 1: 1~3 with the mol ratio of chloro-formic ester; The mol ratio of the hydrogenchloride in compound 5 and ethanol solution of hydrogen chloride is 1: 1~5;

(6) under polar solvent exists, add compound 6, trinitride and catalyzer; system is in 15~40 ℃ of insulation reaction after 20~30 hours; filter, concentrated, the solution that obtains compound 7 is directly thrown next step; compound 7 is (4S; 5S)-2,2,5-trimethylammonium-5-(2-azido-ethanoyl)-1; 3-dioxolane, structural formula is

Wherein, compound 6 is 1g/5~15ml with the amount ratio of polar solvent; Compound 6 is 1: 1~4 with the mol ratio of trinitride; Compound 6 is 1: 0.05~0.8 with the mol ratio of catalyzer;

(7) under ether solvent exists, add triphenyl phosphorus and water, or palladium carbon and hydrogen, or Raney's nickel and hydrogen, system regulates pH to 1~4 with acids reagent, adds the solution of compound 7, be incubated 10~30 ℃ of reactions 5~10 hours, suction filtration, concentrated, obtain the filtrate of containing compound 8, directly throw next step or isolate solid and throw next step, compound 8 is (3S, 4S)-1-amino-3,4-dihydroxyl-2 pentanone, structural formula is

Wherein compound 7 is 1g/5~15ml with the amount ratio of ether solvent; Compound 7 is 1: 0.1~3 with the mol ratio of triphenyl phosphorus; Compound 7 is 1: 0.1~3 with the amount ratio of water; The mass ratio of compound 7 and 5% palladium carbon or 10% palladium carbon or Raney's nickel is 1: 0.05~0.6, and passing into hydrogen to system pressure is 0.4~0.9MPa;

(8) under the existence of alcoholic solvent and pure water, add catalyzer, compd A, i.e. the chloro-5-nitro-3H-of 2-amino-6-pyrimidin-4-one, structural formula is compound 8, alkaline reagents, system is in 30~80 ℃ of insulation reaction after 4~8 hours, add buffered soln regulation system pH to 6~8, system obtains compound 9 after filtration, i.e. 2-acetylaminohydroxyphenylarsonic acid 5-nitro-6-((3S, 4S)-3,3-dihydroxyl-2-oxo-amyl group amino)-pyrimidin-4-one, structural formula is

Wherein, compound 8 is 1g/5~15ml with the amount ratio of alcoholic solvent; Compound 8 is 1g/1~5ml with the amount ratio of pure water; Compound 8 is 1: 1~1.5 with the mol ratio of compd A; Compound 8 is 1: 0.05~0.5 with the mol ratio of catalyzer; Compound 8 is 1: 3~8 with the mol ratio of alkaline reagents;

(9) under compound 9 and polar solvent exist, add catalyzer, passing into hydrogen to reaction system pressure is 0.4~0.9MPa, 15~30 ℃ of system temperature controls, pressure 0.4~0.9MPa, react 18~24 hours, system after filtration, regulates pH=11~12 to obtain the solution of compound 10 with alkaline reagents, directly throw next step, compound 10 is acetylaminohydroxyphenylarsonic acid 7,8-dihydro pterin, and structural formula is

Wherein, compound 9 is 1g/20~50ml with the amount ratio of polar solvent; Compound 9 is 1: 0.05~0.6 with the mass ratio of catalyzer;

(10) under the solution of the compound 10 obtaining in step (9) exists, add catalyzer, passing into hydrogen to system pressure is 0.4~0.9MPa, by 10~30 ℃ of system temperature controls, control pressure is 0.4~0.9MPa, react 72~84 hours, after reacting completely, in the dilute hydrochloric acid of cancellation to 10%~20%, system is through suction filtration, dry, obtains compound 11, be target product two sapropterin hydrochloride crude products, through further obtaining two sapropterin hydrochloride sterlings with alcoholic solvent or ketones solvent after 0~40 ℃ of crystallization purifying;

Wherein, compound 10 is 1: 0.05~0.6 with the mass ratio of catalyzer; Compound 10 is 1: 3~10 with the mol ratio of hydrochloric acid; Compound 10 is 1g/5~25ml with the amount ratio of alcoholic solvent or ketones solvent.

In above-mentioned said step (1), polar solvent is water, methyl alcohol, ethanol or Virahol, is preferably water, methyl alcohol or ethanol, most preferably is water; Oxygenant is the tertbutyl peroxide toluene solution of N-bromo-succinimide, metachloroperbenzoic acid, 35% hydrogen peroxide or 50%, the tertbutyl peroxide toluene solution that is preferably N-bromo-succinimide, metachloroperbenzoic acid or 50%, most preferably is N-bromo-succinimide; Highly basic is sodium hydroxide or potassium hydroxide, is preferably sodium hydroxide; with the amount ratio of polar solvent be 1g/5~15ml, be preferably 1g/6~12ml; with the mol ratio of oxygenant be 1: 1~2.5, be preferably 1: 1~2; with the mol ratio of highly basic be 1: 1~2.5, be preferably 1: 1~2.

In above-mentioned said step (2), Lewis acid is aluminum chloride, iron trichloride, zinc chloride, boron trifluoride ether solution, zinc bromide or lithium chloride, be preferably aluminum chloride, boron trifluoride ether solution, zinc bromide or lithium chloride, optimum is aluminum chloride; Mineral alkali is sodium bicarbonate, sodium carbonate, sodium hydroxide, potassium hydroxide, salt of wormwood or saleratus, is preferably sodium bicarbonate, sodium carbonate, salt of wormwood or saleratus, and optimum is sodium carbonate; Compound 2 is 1g/5~12ml with the amount ratio of acetone, is preferably 1g/5~10ml; Compound 2 is 1: 0.1~0.8 with lewis acidic mol ratio, be preferably 1: 0.1~and 0.6; Compound 2 is 1: 0.5~2.5 with the amount ratio of mineral alkali, be preferably 1: 0.5~and 1.5.

In above-mentioned said step (3), polar solvent is tetrahydrofuran (THF), methyl alcohol or ethanol, is preferably tetrahydrofuran (THF) or methyl alcohol, and optimum is methyl alcohol; Resolution reagent is left-handed a-phenylethylamine or left-handed a-amphetamine, is preferably left-handed a-phenylethylamine; Basic solution is methanol solution, 20% potassium hydroxide aqueous solution or 20% the aqueous sodium hydroxide solution of 29% sodium methylate, is preferably the methanol solution of 29% sodium methylate or 20% potassium hydroxide aqueous solution, the methanol solution of the sodium methylate that optimum is 29%; Compound 3 is 1g/3~8ml with the amount ratio of polar solvent, is preferably 1g/4~8ml; Compound 3 is 1: 0.5~1.8 with the mol ratio of pure water, be preferably 1: 0.5~and 1.5; The mol ratio of the alkaline matter in compound 3 and alkaline aqueous solution is 1: 0.5~1.8, be preferably 1: 0.5~and 1.5; Compound 3 is 1g/3~8ml with the amount ratio of the polar solvent of dissolving filter cake, is preferably 1g/3~7ml; Compound 3 is 1: 1~4 with resolution reagent mol ratio, be preferably 1: 1~and 3.

In above-mentioned said step (4), ether solvent is tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether, 1,4-bis-oxygen six encircle or ether, be preferably tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether or 1,4-dioxane, optimum is 2-methyltetrahydrofuran or Isosorbide-5-Nitrae-dioxane; Mineral acid is sulfuric acid, hydrochloric acid or phosphoric acid, is preferably sulfuric acid or hydrochloric acid, and optimum is sulfuric acid; Compound 4 is 1g/3~8ml with the amount ratio of ether solvent, is preferably 1g/3~6ml; Compound 4 is 1: 0.8~2.5 with the mol ratio of DIPEA, be preferably 1: 0.8~and 2.

In above-mentioned said step (5), ether solvent is tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether or 1,4-dioxane or ether, be preferably tetrahydrofuran (THF), 2-methyltetrahydrofuran or methyl tertiary butyl ether, and optimum is tetrahydrofuran (THF) or 2-methyltetrahydrofuran; Chloro-formic ester is methyl-chloroformate, Vinyl chloroformate or propyl chloroformate, is preferably methyl-chloroformate or Vinyl chloroformate, and optimum is Vinyl chloroformate; Alkaline reagents is triethylamine, sodium carbonate, salt of wormwood, sodium bicarbonate, saleratus, sodium hydroxide or potassium hydroxide, is preferably triethylamine, sodium carbonate, salt of wormwood, sodium bicarbonate or saleratus, and optimum is triethylamine; Compound 5 is 1g/6~12ml with the amount ratio of ether solvent, is preferably 1g/8~12ml; Compound 5 is 1: 1.5~4 with the mol ratio of DIPEA; Be preferably 1: 2~4; Compound 5 is 1: 1~2.5 with the mol ratio of chloro-formic ester, be preferably 1: 1~and 2; Compound 5 is 1: 1.5~4.5 with the mol ratio of hydrogenchloride, be preferably 1: 2~and 4.

In above-mentioned said step (6), polar solvent is acetonitrile, methyl alcohol, ethanol, acetone or tetrahydrofuran (THF), is preferably methyl alcohol, ethanol or acetone, and optimum is acetone; Catalyzer is sodium iodide or potassiumiodide, is preferably sodium iodide; Trinitride is sodium azide or trimethyl silicane nitrine, is preferably sodium azide; Compound 6 is 1g/6~12ml with the amount ratio of polar solvent, is preferably 1g/8~12ml; Compound 6 is 1: 1~3 with the mol ratio of trinitride, be preferably 1: 1~and 2.5; Compound 6 is 1: 0.05~0.6 with the mol ratio of catalyzer, is preferably 0.1~0.5.

In above-mentioned said step (7), ether solvent is tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether, Isosorbide-5-Nitrae-dioxane or ether; Be preferably tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether or Isosorbide-5-Nitrae-dioxane; Optimum is tetrahydrofuran (THF); Acids reagent is citric acid, tosic acid, Phenylsulfonic acid, formic acid, acetic acid, hydrochloric acid, sulfuric acid or phosphoric acid, is preferably citric acid, tosic acid, Phenylsulfonic acid, hydrochloric acid or sulfuric acid, and optimum is citric acid or hydrochloric acid; Compound 7 is 1g/5~12ml with the amount ratio of ether solvent, is preferably 1g/6~12ml; Compound 7 is 1: 0.6~2 with the mol ratio of triphenyl phosphorus, be preferably 1: 0.8~and 2; Compound 7 is 1: 0.6~2 with the amount ratio of water, be preferably 1: 0.8~and 2; The mass ratio of compound 7 and 5% palladium carbon or 10% palladium carbon or Raney's nickel is 1: 0.05~0.4, be preferably 1: 0.05~and 0.3; Passing into hydrogen to system pressure is 0.5~0.8MPa, is preferably 0.6~0.8MPa.

In above-mentioned said step (8), alcoholic solvent is methyl alcohol, ethanol, propyl alcohol or Virahol, is preferably methyl alcohol, ethanol or Virahol, and optimum is Virahol or ethanol; Catalyzer is sodium iodide or potassiumiodide, is preferably sodium iodide; Alkaline reagents is triethylamine, diisopropylethylamine, Diisopropylamine, pyridine, sodium bicarbonate, saleratus, sodium carbonate, salt of wormwood or cesium carbonate, be preferably triethylamine, pyridine, sodium bicarbonate, saleratus, sodium carbonate or salt of wormwood, optimum is triethylamine; Buffered soln is SODIUM PHOSPHATE, MONOBASIC-Sodium phosphate dibasic aqueous solution, potassium primary phosphate-aqueous dibasic potassium phosphate solution or ammonium formiate-ammonia aqueous solution, be preferably SODIUM PHOSPHATE, MONOBASIC-Sodium phosphate dibasic aqueous solution or potassium primary phosphate-aqueous dibasic potassium phosphate solution, optimum is potassium primary phosphate-aqueous dibasic potassium phosphate solution; Compound 8 is 1g/6~12ml with the amount ratio of alcoholic solvent, is preferably 1g/6~10ml; Compound 8 is 1g/1~4ml with the amount ratio of pure water, is preferably 1g/1~3ml; Compound 8 is 1: 1~1.4 with the mol ratio of compd A, be preferably 1: 1~and 1.2; Compound 8 is 1: 0.1~0.4 with the mol ratio of catalyzer, be preferably 1: 0.1~and 0.3; Compound 8 is 1: 4~7 with the mol ratio of alkaline reagents, be preferably 1: 4~and 6.

In above-mentioned said step (9), catalyzer is Raney's nickel, 5% palladium carbon, 10% palladium carbon, platinum dioxide or 20% palladium carbon, be preferably Raney's nickel, 5% palladium carbon or 10% palladium carbon, optimum be Raney's nickel; Polar solvent is pure water, methyl alcohol or ethanol, is preferably pure water or methyl alcohol, and optimum is pure water; Alkaline reagents is sodium hydroxide, potassium hydroxide, sodium carbonate or salt of wormwood, sodium hydroxide or sodium carbonate; Optimum is sodium hydroxide; Compound 9 is 1g/25~45ml with the amount ratio of polar solvent, is preferably 1g/30~40ml; Compound 9 is 1: 0.05~0.5 with the mass ratio of catalyzer, be preferably 1: 0.1~and 0.4.

In above-mentioned said step (10), catalyzer is Raney's nickel, 5% palladium carbon, 10% palladium carbon, platinum dioxide or 20% palladium carbon, is preferably Raney's nickel, platinum dioxide or 20% palladium carbon, and optimum is 20% palladium carbon; Alcoholic solvent is methyl alcohol, ethanol, Virahol or propyl carbinol, is preferably methyl alcohol, ethanol or Virahol, and optimum is methyl alcohol; Ketones solvent is acetone or butanone, is preferably acetone; Compound 10 is 1: 0.05~0.5 with the mass ratio of catalyzer, be preferably 1: 0.1~and 0.4; Compound 10 is 1: 4~9 with the mol ratio of hydrochloric acid, be preferably 1: 5~and 8; Compound 10 is 1g/5~20ml with the amount ratio of alcoholic solvent or ketones solvent, is preferably 1g/10~20ml.

Superiority of the present invention: the raw material that 1, synthetic method adopts is easy to get, and compared with current technology, cost reduces greatly; 2, route of the present invention is succinct, has greatly shortened the synthetic route of two sapropterin hydrochloride; 3, stable process conditions, whole operating process is simple, three wastes output is few, pollute little, for the large-scale industrial production of two sapropterin hydrochloride provides an effective thinking; 4, the present invention utilizes the intermediate of chiral selectors fractionation racemization intermediate or low enantiomorph isomery value, obtains the intermediate of high antimer isomery value, is supplementing of chirality route; 5, the present invention can obtain purity and is greater than 98%, and enantiomeric excess value can reach more than 98% target product.

(4) accompanying drawing explanation:

Fig. 1 is the preparation process schema of a kind of related method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of the present invention.

(5) embodiment:

For the interval range occurring in embodiment, be because temperature in single test and pH value are with certain the floating of there will be of reaction process

Embodiment 1: main raw material is r=-CH 2cH 2cH 3, X=NH

(1), in 2000L reactor, add the pure water of 950L (10g/ml), the β-crotonic acid propionic acid amide of 95kg (1eq) system is warmed up to 40 ± 5 ℃, add 208kg (1.5eq) N-bromo-succinimide, insulation reaction 3 hours, to 15% the sodium hydroxide solution that adds 300kg (1.5eq) in system, insulation reaction 3.5 hours, extraction, concentrated, obtain alkyl-2 of compound 67.6kg, 3 epoxies-butyric acid propionic acid amide yield 63%;

(2) in 2000L reactor, add under the existence of (8eq) acetone of 219kg, add the aluminum chloride of 25kg (0.4eq), 20 ± 5 ℃ of temperature controls, add alkyl-2 of 67.6kg (1.0eq), 3 epoxies-butyric acid propionic acid amide insulation reaction 8 hours, to 8% sodium carbonate (1.5eq) solution that adds 939kg in system, system is through separatory, extraction, concentrated 2 of the 75.1kg, 3-the third ketal-propyl group butyramide of obtaining yield 79%;

(3), in 1000L reactor, add the tetrahydrofuran (THF) of 450.6L (6ml/g), 2 of 75.1kg (1eq), 3-the third ketal-propyl group butyramide be warming up to 30 ± 5 ℃, add the methanol solution of 29% the sodium methylate of the pure water of 11.3kg (1.2eq) and 117.2kg (1.2eq), insulation reaction 6 hours, centrifugal, the tetrahydrofuran (THF) of 525.7L for filter cake (7ml/g) dissolves, add the left-handed a-phenylethylamine of 127.1kg (2eq), in 22 ± 5 ℃ of insulations 4 hours, centrifugal, dry, obtain 2 of 27.3kg, 3-the third ketal-butyric acid phenylethylamine salt yield 26%;

(4) to the 2-methyltetrahydrofuran that adds 28L (5ml/g) in 72L reaction flask, 5.6kg (1eq) 2,3-the third ketal-butyric acid phenylethylamine salt be 2 ± 0.5 to adding in system 8% diluted hydrochloric acid aqueous solution to regulate pH again, 0 ± 5 ℃ of temperature control, insulation reaction 1 hour, separatory obtains organic phase, to (1eq) N that adds 4.5kg in organic phase, N-diisopropylethylamine, concentrated (4S, 5S)-2,2 that obtain 3.0kg of system, 5-trimethylammonium 1,3-dioxolane-4-formic acid yield 95%;

(5), to the 2-methyltetrahydrofuran that adds 30L (10ml/g) in 72L reaction flask, add (4S, 5S)-2,2 of 3.0kg, 5-trimethylammonium 1,3-dioxolane-4-formic acid the DIPEA of 4.3kg (2eq), cools to-20 ± 5 ℃; add the chloro-formic ester of 2.7kg (1.3eq), insulation reaction 1.5 hours, passes into diazomethane gas 1.5 hours; add 20% ethanol solution of hydrogen chloride of 10.3kg (3eq), react 1.5 hours, add triethylamine to regulate pH value to 8 ± 0.5; extraction, separatory, the concentrated (4S that obtains 3.1kg; 5S)-2; 2,5-trimethylammonium-5-chloracetyl-1,3-dioxolane yield 85%;

(6) to the acetone solvent that adds 31L (10ml/g) in 72L bottle, (4S, 5S)-2,2 of 3.1kg, 5-trimethylammonium-5-chloracetyl-1,3-dioxolane the sodium azide of 1.9kg (1.8eq); and the sodium iodide of 0.5kg (0.2eq); system is in 30 ± 5 ℃ of insulation reaction after 25 hours; filter, concentrated, obtain (the 4S containing 3.05kg; 5S)-2; 2,5-trimethylammonium-5-(2-azido-ethanoyl)-1,3-dioxolane acetone soln, yield 95%;

(7) in 100L reactor; add 30.5L (10ml/g) tetrahydrofuran (THF); the triphenyl phosphorus of 4.4kg (1.1eq); 0.3kg (1.1eq) water, it is 3 ± 0.5 that system is adjusted to pH with citric acid, adds (the 4S containing 3.05kg (1eq); 5S)-2; 2,5-trimethylammonium-5-(2-azido-ethanoyl)-1,3-dioxolane acetone soln, is incubated 20 ± 5 ℃ of reactions 8 hours, and suction filtration is concentrated, obtains (3S, 4S)-1-amino-3 containing 1.8kg, 4-dihydroxyl-2 pentanone filtrate, directly throw next step, yield is 90%;

(8) in 50L reaction flask, add 18.9L (9ml/g) Virahol, 2.3L (1.1ml/g) pure water, (0.1eq) sodium iodide of 0.1kg, the compd A (the chloro-5-nitro-3H-of 2-amino-6-pyrimidin-4-one) of 1.76kg (1.1eq), (3S, 4S)-1-amino-3 of 0.92kg (1eq), 4-dihydroxyl-2 pentanone add 3.5kg (5eq) triethylamine, system after 6 hours, adds potassium primary phosphate-aqueous dibasic potassium phosphate solution regulation system pH to 7 ± 0.5 in 50 ± 5 ℃ of insulation reaction; System obtains 2-acetylaminohydroxyphenylarsonic acid 5-nitro-6-((3S, 4S)-3,3-dihydroxyl-2-oxo-amyl group amino)-pyrimidin-4-one of 1.02kg after filtration yield 45%;

(9), in 100L autoclave, add 2-acetylaminohydroxyphenylarsonic acid 5-nitro-6-((3S, 4S)-3,3-dihydroxyl-2-oxo-amyl group amino)-pyrimidin-4-one of 2.0kg (1eq) 70L (35ml/g) pure water, 0.6kg (0.3g/g) Raney's nickel, passing into hydrogen to reaction system pressure is 0.6 ± 0.05MPa, 20 ± 5 ℃ of system temperature controls, pressure 0.6 ± 0.05MPa, reacts 20 hours, and system after filtration, regulate pH=11.5 ± 0.5 to obtain containing 1.7kg acetylaminohydroxyphenylarsonic acid 7,8-dihydro pterin the aqueous solution, directly throw next step;

(10) obtain in step (9) containing 1.7kg acetylaminohydroxyphenylarsonic acid 7,8-dihydro pterin the aqueous solution exist under, add the 20% palladium carbon of 0.255kg (0.15g/g), passing into hydrogen to reactor pressure is 0.6 ± 0.05MPa, by 20 ± 5 ℃ of system temperature controls, pressure 0.6 ± 0.05MPa, react 80 hours, after reacting completely, cancellation is in the dilute hydrochloric acid of 10.29kg (7eq) 15%, and system is through suction filtration, dry, obtain target product two sapropterin hydrochloride crude product, 25L for crude product (14.7ml/g) methyl alcohol, in 20 ± 5 ℃ of recrystallization purifyings, obtains the sterling of 0.95kg, yield 50%, purity 98.5%, enantiomeric excess value is 99.2%.

Embodiment 2: main raw material is x=O

(1), in 3000L reactor, add the methyl alcohol of 2016L (20g/ml), the β-crotonic acid cyclopropane base ester of 100.8kg (1eq) system is warmed up to 50 ± 5 ℃, add 414kg (3eq) metachloroperbenzoic acid, insulation reaction 5 hours, to 20% the potassium hydroxide solution that adds 673kg (3eq) in system, insulation reaction 4 hours, extraction, concentrated, obtain 2,3 epoxies-butyric acid cyclopropane base ester of compound 69.4kg yield 61%;

(2) in 2000L reactor, add under the existence of (15eq) acetone of 425kg, add the iron trichloride of 79.2kg (1eq), 30 ± 5 ℃ of temperature controls, add 2,3 epoxies-butyric acid cyclopropane base ester of 69.4kg (1.0eq) insulation reaction 10 hours, to 10% sodium carbonate (3eq) solution that adds 1552kg in system, system is through separatory, extraction, concentrated 2 of the 75.3kg, 3-the third ketal-butyric acid cyclopropane base ester of obtaining yield 77%;

(3), in 1000L reactor, add the methyl alcohol of 753L (10ml/g), 2 of 75.3kg (1eq), 3-the third ketal-butyric acid cyclopropane base ester be warming up to 40 ± 5 ℃, add 20% the potassium hydroxide solution of the pure water of 20.2kg (3eq) and 210kg (2eq), insulation reaction 8 hours, centrifugal, the dissolve with methanol of 753L for filter cake (10ml/g), adds the left-handed a-amphetamine of 322kg (5eq), in 30 ± 5 ℃ of insulations 5 hours, centrifugal, dry, obtain 27.2kg's yield 24.5%;

(4) to the tetrahydrofuran (THF) that adds 27L (10ml/g) in 72L reaction flask, (4S, 5R)-2,2 of 2.7kg (1eq), 5-trimethylammonium-DOX-4-carboxylic acid phenylpropyl alcohol amine salt be 3 ± 0.5 to adding in system 10% dilute sulfuric acid aqueous solution to regulate pH again, 10 ℃ ± 5 ℃ of temperature controls, react 1 hour, separatory obtains organic phase, to (3eq) N that adds 6.1kg in organic phase, N-diisopropylethylamine, concentrated (4S, 5S)-2,2 that obtain 1.3kg of system, 5-trimethylammonium 1,3-dioxolane-4-formic acid yield 90%;

(5), to the tetrahydrofuran (THF) that adds 20L (15ml/g) in 72L reaction flask, add (4S, 5S)-2,2 of 1.3kg, 5-trimethylammonium 1,3-dioxolane-4-formic acid the DIPEA of 8kg (5eq), cools to 0 ± 5 ℃; add the chloro-formic ester of 4.5kg (3eq), insulation reaction 1~2 hour, passes into diazomethane gas 2 hours; add 20% ethanol solution of hydrogen chloride of 12.7kg (5eq), react 2 hours, adding sodium carbonate to regulate pH value is 9 ± 0.5;, extraction, separatory; concentrated (4S, the 5S) that obtain 1.3kg-2,2; 5-trimethylammonium-5-chloracetyl-1,3-dioxolane yield 82%;

(6) to the acetonitrile solvent that adds 19.5L (15ml/g) in 72L bottle, (4S, 5S)-2,2 of 1.3kg, 5-trimethylammonium-5-chloracetyl-1,3-dioxolane the sodium iodide of the trimethyl silicane nitrine of 3.1kg (4eq) and 0.8kg (0.8eq), system, is filtered after 30 hours in 40 ± 5 ℃ of insulation reaction, concentrated, obtains containing 1.21kg's acetonitrile solution, yield 90%;

(7) in 50L reactor; add 18.2L (15ml/g) 1; 4-dioxane, the Raney's nickel of 0.73kg (0.6g/g), passing into hydrogen to system pressure is 0.9 ± 0.1Pa; it is 1 ± 0.5 that system is adjusted to pH with concentrated hydrochloric acid; add (4S, 5S)-2,2 containing 1.21kg (1eq); 5-trimethylammonium-5-(2-azido-ethanoyl)-1,3-dioxolane acetonitrile solution, 30 ± 5 ℃ are reacted 8 hours, and suction filtration is concentrated, separates, and obtains (3S, 4S)-1-amino-3 of 0.71kg, 4-dihydroxyl-2 pentanone yield is 87.5%;

(8) in 100L reactor, add 47.5L (15ml/g) methyl alcohol, 15.8L (5ml/g) pure water, (0.5eq) potassiumiodide of 1.28kg, the compd A (the chloro-5-nitro-3H-of 2-amino-6-pyrimidin-4-one) of 3.6kg (1.5eq), (3S, 4S)-1-amino-3 of 1.4kg (1eq), 4-dihydroxyl-2 pentanone add 6.4kg (8eq) pyridine, system after 8 hours, adds ammonium formiate-ammonia aqueous solution regulation system pH to 8 ± 0.5 in 80 ± 5 ℃ of insulation reaction; System obtains 2-acetylaminohydroxyphenylarsonic acid 5-nitro-6-((3S, 4S)-3,3-dihydroxyl-2-oxo-amyl group amino)-pyrimidin-4-one of 1.47kg after filtration yield 43.2%;

(9), in 200L autoclave, add 2-acetylaminohydroxyphenylarsonic acid 5-nitro-6-((3S, 4S)-3,3-dihydroxyl-2-oxo-amyl group amino)-pyrimidin-4-one of 2.94kg (1eq) 147L (50ml/g) methyl alcohol, 1.76kg (0.6g/g) 5% palladium carbon, passing into hydrogen to system pressure is 0.9 ± 0.05MPa, 30 ± 5 ℃ of system temperature controls, pressure 0.9 ± 0.05MPa, reacts 24 hours, and system after filtration, regulate pH=12 ± 0.5 to obtain containing 2.5kg acetylaminohydroxyphenylarsonic acid 7,8-dihydro pterin methanol solution, directly throw next step;

(10) obtain in step (9) containing 2.5kg acetylaminohydroxyphenylarsonic acid 7,8-dihydro pterin methanol solution exist under, add the Raney's nickel of 1.5kg (0.6g/g), passing into hydrogen to system pressure is 0.9 ± 0.05MPa, by 30 ± 5 ℃ of system temperature controls, pressure 0.9 ± 0.05MPa, react 84 hours, after reacting completely, cancellation is in the dilute hydrochloric acid of 16.2kg (10eq) 20%, and system is through suction filtration, dry, obtain target product two sapropterin hydrochloride crude product, 62.5L for crude product (25ml/g) acetone, in 40 ± 5 ℃ of recrystallization purifyings, obtains the sterling of 1.31kg, yield 47%, purity 98.1%, enantiomeric excess value is 98.9%.

Embodiment 3: main raw material is r=-CH 3, X=NH

(1), in 2000L reactor, add the ethanol of 495L (5g/ml), the β-crotonic acid methane amide of 99kg (1eq) system is warmed up to 35 ± 5 ℃, add the tertbutyl peroxide toluene solution of 180.2kg (1eq) 50%, insulation reaction 2 hours, to 10% the sodium hydroxide solution that adds 400kg (1eq) in system, insulation reaction 3 hours, extraction, concentrated, obtain 2,3 epoxies-butyric acid methane amide of compound 70.2kg yield 61%;

(2) in 1000L reactor, add under the existence of (3eq) acetone of 106kg, add the lithium chloride of 2.6kg (0.1eq), 10 ± 5 ℃ of temperature controls, add 2,3 epoxies-butyric acid methane amide of 70.2kg (1.0eq) insulation reaction 5 hours, to 5% saleratus (0.5eq) solution that adds 610kg in system, system is through separatory, extraction, concentrated 2 of the 81.3kg, 3-the third ketal-alkyl formamides of obtaining yield 77%;

(3), in 1000L reactor, add the ethanol of 243.9L (3ml/g), 2 of 81.3kg (1eq), 3-the third ketal-alkyl formamides be warming up to 25 ± 5 ℃, add 20% the sodium hydroxide solution of the pure water of 4.23kg (0.5eq) and 47kg (0.5eq), insulation reaction 3 hours, centrifugal, the dissolve with ethanol of 122.6L for filter cake (2ml/g), adds the left-handed a-phenylethylamine of 56.9kg (1eq), in 15 ± 5 ℃ of insulations 3 hours, centrifugal, be dried, obtain (the 4S of 32.3kg, 5R)-2,2,5-trimethylammonium-DOX-4-carboxylic acid phenylpropyl alcohol amine salt yield 24.5%;

(4) to the Isosorbide-5-Nitrae-dioxane that adds 30L (3ml/g) in 72L reaction flask, 10kg (1eq) (4S, 5R)-2,2,5-trimethylammonium-DOX-4-carboxylic acid phenylpropyl alcohol amine salt be 1 ± 0.5 to adding in system the 5% dilute phosphoric acid aqueous solution to regulate pH again, temperature control-10 ± 5 ℃ reaction 1 hour, separatory obtains organic phase, to (0.8eq) DIPEA that adds 3.3kg in organic phase, the concentrated (4S that obtains 5.2kg of system, 5S)-2,2,5-trimethylammonium 1,3-dioxolane-4-formic acid yield 91%.

(5), to the Isosorbide-5-Nitrae-dioxane that adds 26L (5ml/g) in 72L reaction flask, add (4S, 5S)-2,2 of 5.2kg (1eq), 5-trimethylammonium 1,3-dioxolane-4-formic acid the DIPEA of 3.7kg (1eq), cools to-30 ± 5 ℃; add the chloro-formic ester of 3.5kg (1eq), insulation reaction 1 hour, passes into diazomethane gas 1 hour; add 20% ethanol solution of hydrogen chloride of 2kg (1eq), react 1 hour, adding saleratus to regulate pH value is 7 ± 0.5; extraction, separatory, the concentrated (4S that obtains 5kg; 5S)-2; 2,5-trimethylammonium-5-chloracetyl-1,3-dioxolane yield 81%;

(6) to the methyl alcohol that adds 25L (5ml/g) in 72L bottle, (4S, 5S)-2,2 of 5kg, 5-trimethylammonium-5-chloracetyl-1,3-dioxolane the sodium azide of 1.7kg (1eq); and the potassiumiodide of 0.22kg (0.05eq); system is in 15 ± 5 ℃ of insulation reaction after 20 hours; filter, concentrated, obtain (the 4S containing 4.5kg; 5S)-2; 2,5-trimethylammonium-5-(2-azido-ethanoyl)-1,3-dioxolane methanol solution be directly used in next step, yield 87%;

(7) in 100L reactor; add 22.5L (5ml/g) methyl tertiary butyl ether; the 10% palladium carbon of 0.3kg (0.05g/g); passing into hydrogen to system pressure and be 0.4 ± 0.1MPa system Phenylsulfonic acid, to be adjusted to pH be 4 ± 0.5; containing (4S, 5S)-2,2 of 4.5kg (1eq); 5-trimethylammonium-5-(2-azido-ethanoyl)-1,3-dioxolane methanol solution, is incubated 10 ± 5 ℃ of reactions 5 hours, and suction filtration is concentrated, obtains (3S, 4S)-1-amino-3 containing 2.6kg, 4-dihydroxyl-2 pentanone filtrate, directly throw next step, yield is 86%;

(8) in 50L reaction flask, add 21L (5ml/g) ethanol, 4.2L (1ml/g) pure water, (0.05eq) sodium iodide of 0.1kg, the compd A (the chloro-5-nitro-3H-of 2-amino-6-pyrimidin-4-one) of 3.2kg (1eq), (3S, 4S)-1-amino-3 of 1.83kg (1eq), 4-dihydroxyl-2 pentanone add 4.4kg (3eq) sodium carbonate, system after 4 hours, adds SODIUM PHOSPHATE, MONOBASIC-Sodium phosphate dibasic water solution system to regulate pH to 6 ± 0.5 in 30 ± 5 ℃ of insulation reaction; System obtains 2-acetylaminohydroxyphenylarsonic acid 5-nitro-6-((3S, 4S)-3,3-dihydroxyl-2-oxo-amyl group amino)-pyrimidin-4-one of 1.9kg after filtration yield 42%.

(9), in 100L autoclave, add 3.8kg (1eq) 2-acetylaminohydroxyphenylarsonic acid 5-nitro-6-((3S, 4S)-3,3-dihydroxyl-2-oxo-amyl group amino)-pyrimidin-4-one 76L (20ml/g) ethanol, 0.2kg (0.05g/g) 20% palladium carbon, passing into hydrogen to system pressure is 0.4 ± 0.05MPa, 15 ± 5 ℃ of system temperature controls, pressure 0.4 ± 0.05MPa, reacts 18 hours, and system after filtration, regulate pH=11 ± 0.5 to obtain containing 3.25kg acetylaminohydroxyphenylarsonic acid 7,8-dihydro pterin ethanolic soln, directly throw next step.

(10) acetylaminohydroxyphenylarsonic acid 7 containing 3.25kg obtaining in step (9), 8-dihydro pterin ethanolic soln exist under, add the platinum dioxide of 0.16kg (0.05g/g), passing into hydrogen to system pressure is 0.4 ± 0.05MPa, by 10 ± 5 ℃ of system temperature controls, pressure 0.4 ± 0.05MPa, react 72 hours, after reacting completely, cancellation is in the dilute hydrochloric acid of 12.6kg (3eq) 10%, and system is through suction filtration, dry, obtain target product two sapropterin hydrochloride crude product, 16.3L for crude product (5ml/g) Virahol obtains the sterling of 1.52kg in 0 ± 5 ℃ of recrystallization purifying, yield 42%, purity 98.0%, enantiomeric excess value is 98.7%.

As can be seen here, a kind of method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route disclosed by the invention, can obtain high purity, the target product of high antimer excessive value, and product yield is high.The raw material that synthetic method adopts is easy to get, and has greatly shortened the synthetic route of two sapropterin hydrochloride, stable process conditions, and whole operating process is of reduced contamination, for the large-scale industrial production of two sapropterin hydrochloride provides an effective thinking.

Claims (31)

1. from a method for synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route, it is characterized in that concrete steps are as follows:
(1), under the existence of polar solvent, add compound 1 wherein X=NH or O, R=C1~C6 alkane or benzyl, be warmed up to 35~50 ℃ by system, adds oxygenant, system, in 35~50 ℃ of insulation reaction 2~5 hours, adds 10%~20% strong alkali aqueous solution in system, adds rear insulation reaction 3~4 hours, extraction, concentrates and obtains compound 2, and structural formula is in the time that X is NH, compound 1 is β-crotonic acid alkyl or benzyl acid amides, and compound 2 is 2,3 epoxies-butyric acid alkylamide or 2,3 epoxies-butyric acid benzyl acid amides; In the time that X is oxygen, compound 1 is β-crotonic acid alkyl ester or crotons acid benzyl ester, and compound 2 is 2,3 epoxies-butyric acid alkyl ester or 2,3 epoxies-benzyl butyrate;
Wherein, with the amount ratio of polar solvent be 1g/5~20ml, with the mol ratio of oxygenant be 1:1~3, with the mol ratio of highly basic be 1:1~3; Polar solvent is water, methyl alcohol, ethanol or Virahol, and oxygenant is the tertbutyl peroxide toluene solution of N-bromo-succinimide, metachloroperbenzoic acid, 35% hydrogen peroxide or 50%, and highly basic is sodium hydroxide or potassium hydroxide;
(2) under the existence of acetone, add Lewis acid, 10~30 ℃ of temperature controls add compound 2, insulation reaction 5~10 hours, and to the inorganic alkali solution that adds 5%~10% in system, system is through separatory, and extraction concentratedly obtains compound 3, and structural formula is in the time that X is NH, compound 3 is 2,3-the third ketal-alkyl butyramide or 2,3-the third ketal-benzyl butyramide, and in the time that X is oxygen, compound 3 is 2,3-the third ketal-butyric acid alkyl ester or 2,3-the third ketal-benzyl butyrate;
Wherein, compound 2 is 1:3~15 with the mol ratio of acetone, and compound 2 is 1:0.1~1 with lewis acidic mol ratio, and compound 2 is 1:0.5~3 with the mol ratio of mineral alkali;
(3) under polar solvent exists, add compound 3, be warming up to 25~40 ℃, add pure water and basic solution, insulation reaction 3~8 hours, centrifugal, filter cake is used and is reacted the polar solvent dissolving of using polar solvent identical, adds resolution reagent, in 15~30 ℃ of insulations 3~5 hours, centrifugal, dry, obtain compound 4, i.e. (4S, 5S)-2,3-the third ketal-butyric acid alkylbenzene ethylamine salt, structural formula is n=0,1;
Wherein, compound 3 is 1g/3~10ml with the amount ratio of polar solvent, compound 3 is 1:0.5~3 with the mol ratio of pure water, compound 3 is 1:0.5~2 with the mol ratio of the alkaline matter of basic solution, compound 3 is 1g/2~10ml with the amount ratio of the polar solvent of dissolving filter cake, and compound 3 is 1:1~5 with resolution reagent mol ratio; Polar solvent is tetrahydrofuran (THF), methyl alcohol or ethanol, and resolution reagent is left-handed a-phenylethylamine or left-handed a-amphetamine;
(4) under ether solvent exists, add compound 4, then be 1~3 to adding in system 5~10% inorganic acid aqueous solutions to regulate pH, temperature control-10~10 ℃, are incubated 1 hour, and separatory obtains organic phase, in organic phase, add DIPEA, the concentrated compound 5 that obtains of system, i.e. (4S, 5S)-2,2,5-trimethylammonium 1,3-dioxolane-4-formic acid, structural formula is
Wherein, compound 4 is 1g/3~10ml with the amount ratio of ether solvent, and compound 4 is 1:0.8~3 with the mol ratio of DIPEA;
(5) under ether solvent exists, add compound 5, DIPEA; cool to-30~0 ℃, add chloro-formic ester, insulation reaction 1~2 hour, passes into diazomethane gas 1~2 hour; add ethanol solution of hydrogen chloride, react 1~2 hour, add alkaline reagents to regulate pH value to 7~9; extraction, separatory, the concentrated compound 6 that obtains; i.e. (4S, 5S)-2,2; 5-trimethylammonium-5-chloracetyl-1,3-dioxolane, structural formula is
Wherein, compound 5 is 1g/5~15ml with the amount ratio of ether solvent; Compound 5 is 1:1~5 with the mol ratio of DIPEA; Compound 5 is 1:1~3 with the mol ratio of chloro-formic ester; The mol ratio of the hydrogenchloride in compound 5 and ethanol solution of hydrogen chloride is 1:1~5;
(6) under polar solvent exists, add compound 6, trinitride and catalyzer; system is in 15~40 ℃ of insulation reaction after 20~30 hours; filter, concentrated, the solution that obtains compound 7 is directly thrown next step; compound 7 is (4S; 5S)-2,2,5-trimethylammonium-5-(2-azido-ethanoyl)-1; 3-dioxolane, structural formula is
Wherein, compound 6 is 1g/5~15ml with the amount ratio of polar solvent; Compound 6 is 1:1~4 with the mol ratio of trinitride; Compound 6 is 1:0.05~0.8 with the mol ratio of catalyzer; Polar solvent is acetonitrile, methyl alcohol, ethanol, acetone or tetrahydrofuran (THF), and catalyzer is sodium iodide or potassiumiodide, and trinitride is sodium azide or trimethyl silicane nitrine;
(7) under ether solvent exists, add triphenyl phosphorus and water, or palladium carbon and hydrogen, or Raney's nickel and hydrogen, system regulates pH to 1~4 with acids reagent, adds the solution of compound 7, be incubated 10~30 ℃ of reactions 5~10 hours, suction filtration, concentrated, obtain the filtrate of containing compound 8, directly throw next step or isolate solid and throw next step, compound 8 is (3S, 4S)-1-amino-3,4-dihydroxyl-2 pentanone, structural formula is
Wherein compound 7 is 1g/5~15ml with the amount ratio of ether solvent; Compound 7 is 1:0.1~3 with the mol ratio of triphenyl phosphorus; Compound 7 is 1:0.1~3 with the amount ratio of water; The mass ratio of compound 7 and 5% palladium carbon or 10% palladium carbon or Raney's nickel is 1:0.05~0.6, and passing into hydrogen to system pressure is 0.4~0.9MPa;
(8) under the existence of alcoholic solvent and pure water, add catalyzer, compd A, i.e. the chloro-5-nitro-3H-of 2-amino-6-pyrimidin-4-one, structural formula is compound 8, alkaline reagents, system is in 30~80 ℃ of insulation reaction after 4~8 hours, add buffered soln regulation system pH to 6~8, system obtains compound 9 after filtration, i.e. 2-acetylaminohydroxyphenylarsonic acid 5-nitro-6-((3S, 4S)-3,3-dihydroxyl-2-oxo-amyl group amino)-pyrimidin-4-one, structural formula is
Wherein, compound 8 is 1g/5~15ml with the amount ratio of alcoholic solvent; Compound 8 is 1g/1~5ml with the amount ratio of pure water; Compound 8 is 1:1~1.5 with the mol ratio of compd A; Compound 8 is 1:0.05~0.5 with the mol ratio of catalyzer; Compound 8 is 1:3~8 with the mol ratio of alkaline reagents; Buffered soln is SODIUM PHOSPHATE, MONOBASIC-Sodium phosphate dibasic aqueous solution, potassium primary phosphate-aqueous dibasic potassium phosphate solution or ammonium formiate-ammonia aqueous solution;
(9) under compound 9 and polar solvent exist, add catalyzer, passing into hydrogen to reaction system pressure is 0.4~0.9MPa, 15~30 ℃ of system temperature controls, pressure 0.4~0.9MPa, react 18~24 hours, system after filtration, regulates pH=11~12 to obtain the solution of compound 10 with alkaline reagents, directly throw next step, compound 10 is acetylaminohydroxyphenylarsonic acid 7,8-dihydro pterin, and structural formula is
Wherein, compound 9 is 1g/20~50ml with the amount ratio of polar solvent; Compound 9 is 1:0.05~0.6 with the mass ratio of catalyzer; Catalyzer is Raney's nickel, 5% palladium carbon, 10% palladium carbon, platinum dioxide or 20% palladium carbon, and polar solvent is pure water, methyl alcohol or ethanol;
(10) under the solution of the compound 10 obtaining in step (9) exists, add catalyzer, passing into hydrogen to system pressure is 0.4~0.9MPa, by 10~30 ℃ of system temperature controls, control pressure is 0.4~0.9MPa, react 72~84 hours, after reacting completely, in the dilute hydrochloric acid of cancellation to 10%~20%, system is through suction filtration, dry, obtains compound 11, be target product two sapropterin hydrochloride crude products, through further obtaining two sapropterin hydrochloride sterlings with alcoholic solvent or ketones solvent after 0~40 ℃ of crystallization purifying;
Wherein, compound 10 is 1:0.05~0.6 with the mass ratio of catalyzer; Compound 10 is 1:3~10 with the mol ratio of hydrochloric acid; Compound 10 is 1g/5~25ml with the amount ratio of alcoholic solvent or ketones solvent; Catalyzer is Raney's nickel, 5% palladium carbon, 10% palladium carbon, platinum dioxide or 20% palladium carbon, and ketones solvent is acetone or butanone.
2. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that in said step (1), with the amount ratio of polar solvent be 1g/5~15ml, with the mol ratio of oxygenant be 1:1~2.5, with the mol ratio of highly basic be 1:1~2.5.
3. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that in said step (2), Lewis acid is aluminum chloride, iron trichloride, zinc chloride, boron trifluoride ether solution, zinc bromide or lithium chloride, and mineral alkali is sodium bicarbonate, sodium carbonate, sodium hydroxide, potassium hydroxide, salt of wormwood or saleratus; Compound 2 is 1g/5~12ml with the amount ratio of acetone, and compound 2 is 1:0.1~0.8 with lewis acidic mol ratio, and compound 2 is 1:0.5~2.5 with the amount ratio of mineral alkali.
4. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that in said step (3) methanol solution of the sodium methylate that basic solution is 29%, 20% potassium hydroxide aqueous solution or 20% aqueous sodium hydroxide solution; Compound 3 is 1g/3~8ml with the amount ratio of polar solvent, compound 3 is 1:0.5~1.8 with the mol ratio of pure water, the mol ratio of the alkaline matter in compound 3 and alkaline aqueous solution is 1:0.5~1.8, compound 3 is 1g/3~8ml with the amount ratio of the polar solvent of dissolving filter cake, and compound 3 is 1:1~4 with resolution reagent mol ratio.
5. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that in said step (4), ether solvent is tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether, 1,4-bis-oxygen six encircle or ether, and mineral acid is sulfuric acid, hydrochloric acid or phosphoric acid; Compound 4 is 1g/3~8ml with the amount ratio of ether solvent, and compound 4 is 1:0.8~2.5 with the mol ratio of DIPEA.
6. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that in said step (5), ether solvent is tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether or 1,4-dioxane or ether, chloro-formic ester is methyl-chloroformate, Vinyl chloroformate or propyl chloroformate, and alkaline reagents is triethylamine, sodium carbonate, salt of wormwood, sodium bicarbonate, saleratus, sodium hydroxide or potassium hydroxide; Compound 5 is 1g/6~12ml with the amount ratio of ether solvent, and compound 5 is 1:1.5~4 with the mol ratio of DIPEA, and compound 5 is 1:1~2.5 with the mol ratio of chloro-formic ester, and compound 5 is 1:1.5~4.5 with the mol ratio of hydrogenchloride.
7. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that in said step (6), compound 6 is 1g/6~12ml with the amount ratio of polar solvent, compound 6 is 1:1~3 with the mol ratio of trinitride, and compound 6 is 1:0.05~0.6 with the mol ratio of catalyzer.
8. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that in said step (7), ether solvent is tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether, 1,4-dioxane or ether, acids reagent is citric acid, tosic acid, Phenylsulfonic acid, formic acid, acetic acid, hydrochloric acid, sulfuric acid or phosphoric acid; Compound 7 is 1g/5~12ml with the amount ratio of ether solvent, compound 7 is 1:0.6~2 with the mol ratio of triphenyl phosphorus, compound 7 is 1:0.6~2 with the amount ratio of water, the mass ratio of compound 7 and 5% palladium carbon or 10% palladium carbon or Raney's nickel is 1:0.05~0.4, and passing into hydrogen to system pressure is 0.5~0.8MPa.
9. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that in said step (8), alcoholic solvent is methyl alcohol, ethanol, propyl alcohol or Virahol, catalyzer is sodium iodide or potassiumiodide, alkaline reagents is triethylamine, diisopropylethylamine, Diisopropylamine, pyridine, sodium bicarbonate, saleratus, sodium carbonate, salt of wormwood or cesium carbonate, compound 8 is 1g/6~12ml with the amount ratio of alcoholic solvent, compound 8 is 1g/1~4ml with the amount ratio of pure water, compound 8 is 1:1~1.4 with the mol ratio of compd A, compound 8 is 1:0.1~0.4 with the mol ratio of catalyzer, compound 8 is 1:4~7 with the mol ratio of alkaline reagents.
10. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that, in said step (9), alkaline reagents is sodium hydroxide, potassium hydroxide, sodium carbonate or salt of wormwood; Compound 9 is 1g/25~45ml with the amount ratio of polar solvent, and compound 9 is 1:0.05~0.5 with the mass ratio of catalyzer.
11. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 1, it is characterized in that, in said step (10), alcoholic solvent is methyl alcohol, ethanol, Virahol or propyl carbinol; Compound 10 is 1:0.05~0.5 with the mass ratio of catalyzer, and compound 10 is 1:4~9 with the mol ratio of hydrochloric acid, and compound 10 is 1g/5~20ml with the amount ratio of alcoholic solvent or ketones solvent.
12. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 2, it is characterized in that in said step (1), polar solvent is preferably water, methyl alcohol or ethanol, oxygenant is preferably the tertbutyl peroxide toluene solution of N-bromo-succinimide, metachloroperbenzoic acid or 50%, and highly basic is preferably sodium hydroxide; be preferably 1g/6~12ml with the amount ratio of polar solvent, be preferably 1:1~2 with the mol ratio of oxygenant, be preferably 1:1~2 with the mol ratio of highly basic.
13. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 12, it is characterized in that in said step (1), polar solvent most preferably is water, and oxygenant most preferably is N-bromo-succinimide.
14. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 3, it is characterized in that in said step (2), Lewis acid is preferably aluminum chloride, boron trifluoride ether solution, zinc bromide or lithium chloride, and mineral alkali is preferably sodium bicarbonate, sodium carbonate, salt of wormwood or saleratus; Compound 2 is preferably 1g/5~10ml with the amount ratio of acetone, and compound 2 is preferably 1:0.1~0.6 with lewis acidic mol ratio, and compound 2 is preferably 1:0.5~1.5 with the amount ratio of mineral alkali.
15. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 14, it is characterized in that in said step (2), and Lewis acid optimum is aluminum chloride, and mineral alkali optimum is sodium carbonate.
16. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 4, it is characterized in that in said step (3), polar solvent is preferably tetrahydrofuran (THF) or methyl alcohol, resolution reagent is preferably left-handed a-phenylethylamine, and basic solution is preferably the methanol solution of 29% sodium methylate or 20% potassium hydroxide aqueous solution; Compound 3 is preferably 1g/4~8ml with the amount ratio of polar solvent, compound 3 is preferably 1:0.5~1.5 with the mol ratio of pure water, the mol ratio of the alkaline matter in compound 3 and alkaline aqueous solution is preferably 1:0.5~1.5, compound 3 is preferably 1g/3~7ml with the amount ratio of the polar solvent of dissolving filter cake, and compound 3 is preferably 1:1~3 with resolution reagent mol ratio.
17. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 16, it is characterized in that in said step (3), and polar solvent optimum is methyl alcohol, the methanol solution of the sodium methylate that basic solution optimum is 29%.
18. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 5, it is characterized in that in said step (4), ether solvent is preferably tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether or 1,4-dioxane, mineral acid is preferably sulfuric acid or hydrochloric acid; Compound 4 is preferably 1g/3~6ml with the amount ratio of ether solvent; Compound 4 is preferably 1:0.8~2 with the mol ratio of DIPEA.
19. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 18, it is characterized in that in said step (4), ether solvent optimum is 2-methyltetrahydrofuran or Isosorbide-5-Nitrae-dioxane, and mineral acid optimum is sulfuric acid.
20. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 6, it is characterized in that in said step (5), ether solvent is preferably tetrahydrofuran (THF), 2-methyltetrahydrofuran or methyl tertiary butyl ether, chloro-formic ester is preferably methyl-chloroformate or Vinyl chloroformate, and alkaline reagents is preferably triethylamine, sodium carbonate, salt of wormwood, sodium bicarbonate or saleratus; Compound 5 is preferably 1g/8~12ml with the amount ratio of ether solvent, and compound 5 is preferably 1:2~4 with the mol ratio of DIPEA, and compound 5 is preferably 1:1~2 with chloro-formic ester, and compound 5 is preferably 1:2~4 with the mol ratio of hydrogenchloride.
21. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 20, it is characterized in that in said step (5), ether solvent optimum is tetrahydrofuran (THF) or 2-methyltetrahydrofuran, chloro-formic ester optimum is Vinyl chloroformate, and alkaline reagents optimum is triethylamine.
22. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 7, it is characterized in that in said step (6), polar solvent is preferably methyl alcohol, ethanol or acetone, and catalyzer is preferably sodium iodide, and trinitride is preferably sodium azide; Compound 6 is preferably 1g/8~12ml with the amount ratio of polar solvent, and compound 6 is preferably 1:1~2.5 with the mol ratio of trinitride, and compound 6 is preferably 0.1~0.5 with the mol ratio of catalyzer.
23. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 22, it is characterized in that in said step (6), and polar solvent optimum is acetone.
24. a kind of said methods from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route according to Claim 8, it is characterized in that in said step (7), ether solvent is preferably tetrahydrofuran (THF), 2-methyltetrahydrofuran, methyl tertiary butyl ether or 1,4-dioxane, acids reagent is preferably citric acid, tosic acid, Phenylsulfonic acid, hydrochloric acid or sulfuric acid; Compound 7 is preferably 1g/6~12ml with the amount ratio of ether solvent, compound 7 is preferably 1:0.8~2 with the mol ratio of triphenyl phosphorus, compound 7 is preferably 1:0.8~2 with the amount ratio of water, the mass ratio of compound 7 and 5% palladium carbon or 10% palladium carbon or Raney's nickel is preferably 1:0.05~0.3, passes into hydrogen to system pressure and is preferably 0.6~0.8MPa.
25. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 24, it is characterized in that in said step (7), and ether solvent optimum is tetrahydrofuran (THF), and acids reagent optimum is citric acid or hydrochloric acid.
26. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 9, it is characterized in that in said step (8), alcoholic solvent is preferably methyl alcohol, ethanol or Virahol, catalyzer is preferably sodium iodide, alkaline reagents is preferably triethylamine, pyridine, sodium bicarbonate, saleratus, sodium carbonate or salt of wormwood, and buffered soln is preferably SODIUM PHOSPHATE, MONOBASIC-Sodium phosphate dibasic aqueous solution or potassium primary phosphate-aqueous dibasic potassium phosphate solution; Compound 8 is preferably 1g/6~10ml with the amount ratio of alcoholic solvent, compound 8 is preferably 1g/1~3ml with the amount ratio of pure water, compound 8 is preferably 1:1~1.2 with the mol ratio of compd A, compound 8 is preferably 1:0.1~0.3 with the mol ratio of catalyzer, and compound 8 is preferably 1:4~6 with the mol ratio of alkaline reagents.
27. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 26, it is characterized in that in said step (8), alcoholic solvent optimum is Virahol or ethanol, alkaline reagents optimum is triethylamine, and buffered soln optimum is potassium primary phosphate-aqueous dibasic potassium phosphate solution.
28. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 10, it is characterized in that in said step (9), catalyzer is preferably Raney's nickel, 5% palladium carbon or 10% palladium carbon, polar solvent is preferably pure water or methyl alcohol, alkaline reagents sodium hydroxide or sodium carbonate; Compound 9 is preferably 1g/30~40ml with the amount ratio of polar solvent, and compound 9 is preferably 1:0.1~0.4 with the mass ratio of catalyzer.
29. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 28, it is characterized in that in said step (9), catalyzer optimum is Raney's nickel, and polar solvent optimum is pure water, and alkaline reagents optimum is sodium hydroxide.
30. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 11, it is characterized in that in said step (10), catalyzer is preferably Raney's nickel, platinum dioxide or 20% palladium carbon, alcoholic solvent is preferably methyl alcohol, ethanol or Virahol, and ketones solvent is preferably acetone; Compound 10 is preferably 1:0.1~0.4 with the mass ratio of catalyzer, and compound 10 is preferably 1:5~8 with the mol ratio of hydrochloric acid, and compound 10 is preferably 1g/10~20ml with the amount ratio of alcoholic solvent or ketones solvent.
31. according to a kind of said method from synthetic two sapropterin hydrochloride of raceme intermediate disconnecting route of claim 30, it is characterized in that in said step (10), and catalyzer optimum is 20% palladium carbon, and alcoholic solvent optimum is methyl alcohol.
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